Publications Scientifiques
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Item Inhibitory effect of Trichoderma harzianum on mycelial growth of Fusarium oxysporum f. sp. radicis-lycopersici and Alternaria solani(Springer Netherlands, 2018) Lakhdari, Wassima; Dehliz, Abderrahmene; Mlik, Randa; Hammi, Hamida; Benlamoudi, Wiam; Acheuk, Fatma; Doumandji-Mitiche, Bahia B.Tomato is one of the most important fruit vegetables for human consumption in Algeria. In recent years, the cultivation of this plant is experiencing a very rapid development. However, this speculation is confronted with several problems including plant health. The purpose of this study is to find biological ways to introduce them into an integrated control program against tomato pests and have an organic agriculture that can increase the production of this culture. Direct confrontation test of an indigenous strain of Trichoderma harzianum with two phytopathogenic fungi that are isolated from tomato leaves (Fusarium oxysporum f. sp. radicis-lycopersici and Alternaria solani) was carried at 26 °C on an artificial culture medium (PDA). It could be demonstrated that T. harzianum inhibited mycelia growth of the two fungi with more than 40% and only after 4 days of incubation. Statistical analysis confirms that T. harzianum had a significant effect of antagonism against the tested pathogens mentioned before with P value 0.02 and 0.04, respectively. Beyond this period, and at the end of the sixth day, T. harzianum occupied the colonies of fungus and began to sporulate marking a very important myco-parasitic power. Indeed, a percent inhibition greater than 50% was recorded into the both fungiItem Agro-morphological response of corn (zea mays l.) to a biostimulant from the southeastern Algeria(2020) Lakhdari, Wassima; Dehliz, Abderrahmene; Mlik, Randa; Chergui, Salima; Benlamoudi, Wiam; Lakhdari, Fatma; Acheuk, Fatma; Hammi, HamidaThis study highlights the effect of a biostimulant based on Trichoderma, indigenous antagonistic fungus from the region of Touggourt, on the development of a local variety of corn. This study was conducted at the experimental station of National Institute of Agronomic Research (Sidi Mehdi, Touggourt) as a complete randomaize block designe. The examined agro-morphological parameters showed that the application of this bioproduct stimulates vegetative growth of the plant. Besides, better germination and earliness of seeds. The results showed more interesting values were obtained in the treated plots (height = 135.9 cm, diameter = 28.9 mm, surface of leaves = 318 cm2, Pan = 10.2 panicles/plant) compared to those of the controls (height = 98.6 cm, diameter = 23.7 mm, surface of leaves = 260.4 cm², Pan = 7.4 panicles/plant). Statistical analyzes confirmed the existence of a very highly significant difference between treated and control subjectsItem Study of melliferous plants visited by the worker honeybee, Apis mellifera intermissa in Boumerdes, Algeria(Faculty of Agriculture, University of East Sarajevo, 2020) Belaid, Messaouda; Mohamedi, Arezki; Chahbar Adidou, Nora; Acheuk, Fatma; Abbad-Bennour, Malika; Ighil Ameur, AmelThis work allows to establish a list of melliferous plants visited by the worker bee, Apis mellifera intermissa in Boumerdes through melissopalynological analysis. Eight samples of honey were collected in summer from different regions of Boumerdes province in Algeria: Mizrana (H1), Tizéruine (H2), Tagdempt (H3), Sherraba (H4), Baghlia (H5), Boudouaou (H6), Sidi Daoud (H7) and Si Mustapha (H8). For the analysis, we adopted the classical method of Louveaux et al., (1970). The results obtained showed that the melissopalynological analysis indicated the pollen grains of Eucalyptus were numerous as more than 45% of the pollen in six (6) of the eight samples of Boumerdes (H1, H2, H3, H4, H7 and H8). The pollen of Hedysarum coronarium was dominant in the sample H5 (67.60%). In seven samples honey recognized multifloral by beekeepers, Eucalyptus and Citrus taxa were respectively super represented and underrepresented in the honey H7 (87.46%) and H6 (19.80%). Thus, the number of taxa listed in the honeys studied varies from 14 to 19. The total number of pollen grains counted for the 8 samples varied from 646 to 3580
